lib/Target/PIC16/PIC16.h

   1 //===-- PIC16.h - Top-level interface for PIC16 representation --*- C++ -*-===//
   2 //
   3 //                     The LLVM Compiler Infrastructure
   4 //
   5 // This file is distributed under the University of Illinois Open Source
   6 // License. See LICENSE.TXT for details.
   7 //
   8 //===----------------------------------------------------------------------===//
   9 //
  10 // This file contains the entry points for global functions defined in
  11 // the LLVM PIC16 back-end.
  12 //
  13 //===----------------------------------------------------------------------===//
  14
  15 #ifndef LLVM_TARGET_PIC16_H
  16 #define LLVM_TARGET_PIC16_H
  17
  18 #include <iosfwd>
  19 #include <cassert>
  20
  21 namespace llvm {
  22   class PIC16TargetMachine;
  23   class FunctionPass;
  24   class MachineCodeEmitter;
  25   class raw_ostream;
  26
  27 namespace PIC16CC {
  28   enum CondCodes {
  29     EQ,
  30     NE,
  31     LT,
  32     LE,
  33     GT,
  34     GE,
  35     ULT,
  36     UGT,
  37     ULE,
  38     UGE
  39   };
  40 }
  41
  42   inline static const char *PIC16CondCodeToString(PIC16CC::CondCodes CC) {
  43     switch (CC) {
  44     default: assert(0 && "Unknown condition code");
  45     case PIC16CC::NE:  return "ne";
  46     case PIC16CC::EQ:   return "eq";
  47     case PIC16CC::LT:   return "lt";
  48     case PIC16CC::ULT:   return "lt";
  49     case PIC16CC::LE:  return "le";
  50     case PIC16CC::GT:  return "gt";
  51     case PIC16CC::UGT:  return "gt";
  52     case PIC16CC::GE:   return "ge";
  53     }
  54   }
  55
  56   inline static bool isSignedComparison(PIC16CC::CondCodes CC) {
  57     switch (CC) {
  58     default: assert(0 && "Unknown condition code");
  59     case PIC16CC::NE:
  60     case PIC16CC::EQ:
  61     case PIC16CC::LT:
  62     case PIC16CC::LE:
  63     case PIC16CC::GE:
  64     case PIC16CC::GT:
  65       return true;
  66     case PIC16CC::ULT:
  67     case PIC16CC::UGT:
  68     case PIC16CC::ULE:
  69     case PIC16CC::UGE:
  70       return false;   // condition codes for unsigned comparison.
  71     }
  72   }
  73
  74
  75   FunctionPass *createPIC16ISelDag(PIC16TargetMachine &TM);
  76   FunctionPass *createPIC16CodePrinterPass(raw_ostream &OS,
  77                                            PIC16TargetMachine &TM,
  78                                            bool Fast, bool Verbose);
  79 } // end namespace llvm;
  80
  81 // Defines symbolic names for PIC16 registers.  This defines a mapping from
  82 // register name to register number.
  83 #include "PIC16GenRegisterNames.inc"
  84
  85 // Defines symbolic names for the PIC16 instructions.
  86 #include "PIC16GenInstrNames.inc"
  87
  88 #endif